<% @gantt.view = self %>
<h2><%= @query.new_record? ? l(:label_gantt) : h(@query.name) %></h2>

<%= form_tag({:controller => 'gantts', :action => 'show',
             :project_id => @project, :month => params[:month],
             :year => params[:year], :months => params[:months]},
             :method => :get, :id => 'query_form') do %>
<%= hidden_field_tag 'set_filter', '1' %>
<fieldset id="filters" class="collapsible <%= @query.new_record? ? "" : "collapsed" %>">
  <legend onclick="toggleFieldset(this);"><%= l(:label_filter_plural) %></legend>
  <div style="<%= @query.new_record? ? "" : "display: none;" %>">
    <%= render :partial => 'queries/filters', :locals => {:query => @query} %>
  </div>
</fieldset>

<p class="contextual">
  <%= gantt_zoom_link(@gantt, :in) %>
  <%= gantt_zoom_link(@gantt, :out) %>
</p>

<p class="buttons">
<%= text_field_tag 'months', @gantt.months, :size => 2 %>
<%= l(:label_months_from) %>
<%= select_month(@gantt.month_from, :prefix => "month", :discard_type => true) %>
<%= select_year(@gantt.year_from, :prefix => "year", :discard_type => true) %>
<%= hidden_field_tag 'zoom', @gantt.zoom %>

<%= link_to_function l(:button_apply), '$("query_form").submit()', :class => 'icon icon-checked' %>
<%= link_to l(:button_clear), { :project_id => @project, :set_filter => 1 }, :class => 'icon icon-reload' %>
</p>
<% end %>

<%= error_messages_for 'query' %>
<% if @query.valid? %>
<% zoom = 1
@gantt.zoom.times { zoom = zoom * 2 }

subject_width = 330
header_heigth = 18

headers_height = header_heigth
show_weeks = false
show_days = false

if @gantt.zoom > 1
    show_weeks = true
    headers_height = 2 * header_heigth
    if @gantt.zoom > 2
        show_days = true
        headers_height = 3 * header_heigth
    end
end

# Width of the entire chart
g_width = ((@gantt.date_to - @gantt.date_from + 1) * zoom).to_i

@gantt.render(:top => headers_height + 8, :zoom => zoom, :g_width => g_width, :subject_width => subject_width)

g_height = [(20 * (@gantt.number_of_rows + 6)) + 150, 206].max
t_height = g_height + headers_height


%>

<% if @gantt.truncated %>
  <p class="warning"><%= l(:notice_gantt_chart_truncated, :max => @gantt.max_rows) %></p>
<% end %>

<table style="width:100%; border:0; border-collapse: collapse;">
<tr>
<td style="width:<%= subject_width %>px; padding:0px;">

<div style="position:relative;height:<%= t_height + 24 %>px;width:<%= subject_width + 1 %>px;">
<div style="right:-2px;width:<%= subject_width %>px;height:<%= headers_height %>px;background: #eee;" class="gantt_hdr"></div>
<div style="right:-2px;width:<%= subject_width %>px;height:<%= t_height %>px;border-left: 1px solid #c0c0c0;overflow:hidden;" class="gantt_hdr"></div>

<div class="gantt_subjects">
<%= @gantt.subjects.html_safe %>
</div>

</div>
</td>
<td>

<div style="position:relative;height:<%= t_height + 24 %>px;overflow:auto;">
<div style="width:<%= g_width - 1 %>px;height:<%= headers_height %>px;background: #eee;" class="gantt_hdr">&nbsp;</div>
<%
#
# Months headers
#
month_f = @gantt.date_from
left = 0
height = (show_weeks ? header_heigth : header_heigth + g_height)
@gantt.months.times do
  width = (((month_f >> 1) - month_f) * zoom - 1).to_i
  %>
  <div style="left:<%= left %>px;width:<%= width %>px;height:<%= height %>px;" class="gantt_hdr">
  <%= link_to h("#{month_f.year}-#{month_f.month}"), @gantt.params.merge(:year => month_f.year, :month => month_f.month), :title => "#{month_name(month_f.month)} #{month_f.year}"%>
  </div>
  <%
  left = left + width + 1
  month_f = month_f >> 1
end %>

<%
#
# Weeks headers
#
if show_weeks
  left = 0
  height = (show_days ? header_heigth - 1 : header_heigth - 1 + g_height)
  if @gantt.date_from.cwday == 1
    # @date_from is monday
    week_f = @gantt.date_from
  else
    # find next monday after @date_from
    week_f = @gantt.date_from + (7 - @gantt.date_from.cwday + 1)
    width = (7 - @gantt.date_from.cwday + 1) * zoom - 1
    %>
    <div style="left:<%= left %>px;top:19px;width:<%= width %>px;height:<%= height %>px;" class="gantt_hdr">&nbsp;</div>
    <%
    left = left + width + 1
  end %>
  <%
  while week_f <= @gantt.date_to
    width = ((week_f + 6 <= @gantt.date_to) ? 7 * zoom - 1 : (@gantt.date_to - week_f + 1) * zoom - 1).to_i
    %>
    <div style="left:<%= left %>px;top:19px;width:<%= width %>px;height:<%= height %>px;" class="gantt_hdr">
    <small><%= week_f.cweek if width >= 16 %></small>
    </div>
    <%
    left = left + width + 1
    week_f = week_f + 7
  end
end %>

<%
#
# Days headers
#
if show_days
  left = 0
  height = g_height + header_heigth - 1
  wday = @gantt.date_from.cwday
  (@gantt.date_to - @gantt.date_from + 1).to_i.times do
  width =  zoom - 1
  %>
  <div style="left:<%= left %>px;top:37px;width:<%= width %>px;height:<%= height %>px;font-size:0.7em;<%= "background:#f1f1f1;" if wday > 5 %>" class="gantt_hdr">
  <%= day_name(wday).first %>
  </div>
  <%
  left = left + width + 1
  wday = wday + 1
  wday = 1 if wday > 7
  end
end %>

<%= @gantt.lines.html_safe %>

<%
#
# Today red line (excluded from cache)
#
if Date.today >= @gantt.date_from and Date.today <= @gantt.date_to %>
    <div style="position: absolute;height:<%= g_height %>px;top:<%= headers_height + 1 %>px;left:<%= (((Date.today - @gantt.date_from + 1) * zoom).floor() - 1).to_i %>px;width:10px;border-left: 1px dashed red;">&nbsp;</div>
<% end %>

</div>
</td>
</tr>
</table>

<table style="width:100%">
<tr>
<td align="left"><%= link_to_content_update("\xc2\xab " + l(:label_previous), params.merge(@gantt.params_previous)) %></td>
<td align="right"><%= link_to_content_update(l(:label_next) + " \xc2\xbb", params.merge(@gantt.params_next)) %></td>
</tr>
</table>

<% other_formats_links do |f| %>
  <%= f.link_to 'PDF', :url => params.merge(@gantt.params) %>
  <%= f.link_to('PNG', :url => params.merge(@gantt.params)) if @gantt.respond_to?('to_image') %>
<% end %>
<% end # query.valid? %>

<% content_for :sidebar do %>
    <%= render :partial => 'issues/sidebar' %>
<% end %>

<% html_title(l(:label_gantt)) -%>
